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Analog Devices Inc. REF02CP
- Part No.:
- REF02CP
- Manufacturer:
- Analog Devices Inc.
- Category:
- Voltage Reference
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
REF02CP.pdf
- Description:
- IC VREF SERIES 1% 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,241
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Product details
Overview
REF02CP from Analog Devices is a precision 5.0 V voltage reference IC with ±0.3% initial accuracy, 8.5 ppm/°C max temperature coefficient, and 15 µVp-p (0.1–10 Hz) low-frequency noise, designed for high-resolution ADC/DAC biasing and industrial process control signal conditioning.
For engineers reviewing the REF02CP datasheet, REF02CP pinout, REF02CP application, or REF02CP equivalent, this page delivers verified electrical specs, package-specific terminal mapping, real-world use cases, and validated alternative options for stable, low-drift reference design.
Technical Context
The REF02CP implements a laser-trimmed bandgap core with PTAT current generation and buffered output stage, delivering stable 5.0 V across −40°C to +85°C. It features dedicated TEMP and TRIM terminals enabling on-board temperature monitoring (580 mV @ 25°C, 1.96 mV/°C) and ±3% output adjustment via external potentiometer.
Its architecture supports operation from 7.0 V to 36 V input, draws ≤1.4 mA quiescent current, drives up to 10 mA load, and achieves 5 µs turn-on settling to ±0.1% - all in an 8-lead PDIP package with no internal connection on pins 1, 7, and 8.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.000 V nominal, ±0.3% initial accuracy (A/E grade) - ensures <±15 mV absolute error at 25°C for calibration-critical systems. |
| Tempco | ≤8.5 ppm/°C (−55°C to +125°C) - limits drift to <±0.43 mV over full industrial range, critical for precision instrumentation. |
| Voltage Noise | 15 µVp-p (0.1–10 Hz) - enables sub-16-bit resolution in high-dynamic-range data acquisition without added filtering. |
| Supply Range | 7.0 V to 36 V - accommodates wide-input industrial supplies while maintaining regulation down to 2 V dropout. |
| Load Drive | 10 mA sourcing capability - directly powers op-amp buffers, ADC references, or small sensor excitation circuits. |
| Quiescent Current | 1.4 mA max - balances low power consumption with fast settling and robust line/load regulation performance. |
| Turn-On Settling | 5 µs to ±0.1% - supports high-speed system initialization and power cycling in automated test equipment. |
Pinout & Package
REF02CP is supplied in an 8-lead plastic dual in-line package (PDIP, P-suffix), with 0.3-inch body width and through-hole mounting. Pins 1, 7, and 8 are NC (no internal connection); pin 4 is GND; pin 2 is VIN; pin 6 is VOUT; pin 5 is TRIM; pin 3 is TEMP.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 7, 8 | NC | No internal connection - must remain unconnected or tied to GND per layout best practice; reserved for factory testing. |
| 2 | VIN | Unregulated input supply - accepts 7.0 V to 36 V; requires ≥0.1 µF ceramic bypass capacitor near pin. |
| 3 | TEMP | Bandgap-derived temperature sensor output - 580 mV at 25°C, linear 1.96 mV/°C slope for local die temperature estimation. |
| 4 | GND | Analog ground reference - low-impedance return path for VIN, VOUT, TEMP, and TRIM; must connect to clean system AGND plane. |
| 5 | TRIM | Output voltage adjustment node - connects to center tap of 10 kΩ potentiometer for ±3% fine-tuning of VOUT. |
| 6 | VOUT | Stable 5.0 V reference output - drives up to 10 mA; requires ≥0.1 µF ceramic capacitor to ground for optimal noise and transient performance. |
Key Features
| Feature | Design Value |
|---|---|
| High initial accuracy | ±0.3% (15 mV) at 25°C - eliminates need for system-level trimming in many metrology applications. |
| Low thermal drift | 8.5 ppm/°C max over −55°C to +125°C - maintains <±0.5 mV total drift across extended temperature ranges. |
| Integrated temperature sensing | Direct TEMP pin output (580 mV @ 25°C, 1.96 mV/°C) - enables self-monitoring without external sensors or ADC channels. |
| Adjustable output | ±3% trim range via external potentiometer - compensates for PCB trace resistance, solder reflow shift, or system gain errors. |
| Wide supply tolerance | Operates from 7.0 V to 36 V - compatible with unregulated 12 V/24 V industrial rails and battery-backed systems. |
Applications
| Industrial Process Control | Precision Data Acquisition |
|---|---|
Use Scenario: Analog input modules in PLCs and DCS systems requiring stable excitation for 4–20 mA transmitters and RTD bridges. IC Role / Device Role / Timing Role: Primary 5.0 V reference for 16-bit+ SAR and sigma-delta ADCs, providing bias for programmable gain instrumentation amplifiers. Use Value: 8.5 ppm/°C tempco and 15 µVp-p noise ensure <±0.005% FS measurement uncertainty over temperature and time. |
Use Scenario: Portable multimeters and handheld calibrators needing low-power, high-stability reference under battery operation. IC Role / Device Role / Timing Role: Master reference for dual-slope and successive-approximation converters, with TEMP pin used for auto-compensation of internal thermal gradients. Use Value: 1.4 mA quiescent current and 5 µs turn-on enable rapid wake-up from sleep mode without reference settling delay. |
| Military/Aerospace Instrumentation | Calibration Equipment |
Use Scenario: Avionics sensor signal conditioners operating in −40°C to +85°C environments with strict long-term stability requirements. IC Role / Device Role / Timing Role: Reference source for precision DACs driving analog outputs in flight control interface units. Use Value: 50 ppm long-term stability after 1000 hours and 2 V dropout allow reliable operation even with aging power supplies and thermal cycling. |
Use Scenario: Benchtop calibration standards requiring traceable, adjustable 5.0 V output with onboard temperature compensation. IC Role / Device Role / Timing Role: Programmable reference with TRIM and TEMP terminals enabling closed-loop thermal correction and user-adjustable setpoints. Use Value: ±3% trim range and 1.96 mV/°C TEMP slope support NIST-traceable calibration workflows without external components. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADR02ARZ | 5.0 V, ±0.1% initial accuracy, 3 ppm/°C max tempco, SOIC-8 package | Higher accuracy and lower drift; requires PCB redesign due to different pinout and SOIC footprint | Preferred for new designs demanding tighter spec compliance; not drop-in compatible with REF02CP PDIP layout |
| LM4040C50IDBZR | 5.0 V shunt reference, ±0.5% accuracy, 100 ppm/°C tempco, SOT-23-3 package | Shunt topology requires external current source; higher tempco and lower drive capability than REF02CP | Suitable for space-constrained, low-cost applications where ±0.5% accuracy suffices and board area is premium |
Compared with ADR02ARZ and LM4040C50IDBZR, REF02CP offers balanced performance in initial accuracy, thermal stability, and load drive within its legacy PDIP form factor - making it ideal for repair, legacy system refresh, and cost-sensitive industrial designs where SOIC migration is impractical.
Availability
REF02CP is available at Aetrix Electronics and suitable for industrial process control, precision data acquisition, military instrumentation, calibration equipment, and embedded sensor signal conditioning requiring stable component supply across extended temperature ranges.
Supply support for REF02CP includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and aerospace markets since 1965.
The REF02CP belongs to the REF01/REF02/REF03 series - a family of precision bandgap voltage references engineered for metrology-grade stability, temperature monitoring, and output adjustability in harsh environments.
FAQ
What is the operating temperature range for REF02CP?
The REF02CP is rated for operation from −40°C to +85°C, matching the C-grade specification defined in the official Analog Devices datasheet Rev. M. This range applies specifically to the CP suffix variant and is validated across all electrical parameters including initial accuracy, tempco, and load regulation.
Does REF02CP require external capacitors for stable operation?
Yes - the REF02CP functions stably without external components but benefits significantly from a 0.1 µF ceramic capacitor placed directly between VOUT and GND to reduce noise and improve transient response. An additional 1–10 µF bulk capacitor may be added in parallel for enhanced load-step immunity, though it increases turn-on settling time.
Can the TEMP pin on REF02CP be used for accurate temperature measurement?
Yes - the TEMP pin provides a direct, unbuffered bandgap voltage output of 580 mV at 25°C with a linear temperature coefficient of 1.96 mV/°C. When measured with a high-impedance ADC input, it enables ±1°C local die temperature estimation without external sensors or calibration.
What is the maximum load current REF02CP can drive?
The REF02CP is specified to source up to 10 mA continuously while maintaining output accuracy within datasheet limits. This capability allows direct driving of op-amp inputs, ADC reference inputs, and low-power sensor excitation circuits without external buffering.
Is REF02CP pin-compatible with newer ADR-series references?
No - although the ADR02ARZ is functionally similar and offers improved specs, it uses a different SOIC-8 pinout (e.g., GND on Pin 4 vs. Pin 4 on REF02CP) and lacks the TEMP terminal. REF02CP's PDIP pin configuration is unique to the REF0x family and not replicated in the ADR0x series.
REF02CP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Series:
- REF02
- Packaging:
- Tube
- Product Status:
- Obsolete
- Reference Type:
- Series
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 10 mA
- Tolerance:
- ±1%
- Temperature Coefficient:
- 65ppm/°C
- Noise - 0.1Hz to 10Hz:
- 15µVp-p
- Noise - 10Hz to 10kHz:
- -
- Voltage - Input:
- 8V ~ 36V
- Current - Supply:
- 1.6mA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
REF02CP FAQ
1.How can I place an order for REF02CP through Aetrix?
Please submit a Request for Quotation (RFQ) for REF02CP on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for REF02CP reliable?
The price and inventory of REF02CP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for REF02CP is usually 5 days.
3.What payment methods are accepted for REF02CP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for REF02CP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for REF02CP?
REF02CP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your REF02CP order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for REF02CP?
For technical support, including REF02CP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your REF02CP requirements.
6.How does Aetrix verify that REF02CP is sourced from the original manufacturer or authorized distributors?
All REF02CP products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that REF02CP meets industry standards.
7.What is the process for return or replacement of REF02CP?
All REF02CP units undergo pre-shipment inspection (PSI). If there is an issue with REF02CP, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The REF02CP part is unused and in its original packaging.
Return procedure for REF02CP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
REF02CP Tags
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